Barber s chair



No. 609,002. Patented Aug. l6, I898.

E. BERNINGHAUS.

BARBERS CHAIR.

(Application filed Apr. 3, 1897.)

3 Sheets-Sheet I.

(No Model.)

[I III //'A TNE u'uams varzns ca. PHOTOLITHO. wumscmm, o. c.

(No Model.)

MK/mm E. BERNINGHAUS. BABBERSCHAIR.

(Application filed Apr. 8, 1897.)

Patented Aug. l6, I898.

3 sheets -sheet 2.

THE uonms rn'zns co. Pnotmuwm wasnmorcu. n. c.

' No. 609,002. Patented Aug. l6, I898.

E. BERNINGHAUS.

BABBERS CHAIR.

(Application filed Apr. 3, 1 897.)

3 Sheets-Sheet 3.

(No Model.)

ll Ill sitions.

. view of the dragging pawl.

lJNrTED STATES PATENT OFFICE.

EUGENE BERNINGHAU S, OF CINCINNATI, OHIO.

BARBERS CHAIR.

SPECIFICATION forming part of Letters Patent No. 609,002, dated August16, 1898. Application filed April 3, 1897. Serial No. 630,571. (Nomodel.)

To aZZ whom it may concern.-

Be it known that I, EUGENE BEnNINeHAUs, a citizen of the United States,residing at Oincinnati, in the county of Hamilton and State of Ohio,have invented a new and useful Improvement in Barbers Chairs, whichimprovement is fully set forth in the following specification andaccompanying drawings, in which- Figure 1 is a longitudinal sectionalview of the lower part of a barbers chair constructed in accordance withmy invention. Fig. 2 is a plan view of the same. Fig. 3 is an elevationof the upper part of the stationary cylinder, showing in dotted linesthe devices for holding the apron. Fig. 4 is a detail sectional view ofthe same. Figs. 5 and t3 are detail sectional views of the lower part ofthe cylinder and riser, showing the devices for elevating and loweringthe seat indiflferent po- Figs. 7 and Sare detail perspective views ofthe mechanism for raising and lowering the seat. Fig. 8 is a detailperspective Fig. 9 isa simi lar view of the locking-shoe.

The object of my invention is to provide novel and improved means forraising and lowering a barbers chair in relation to its base andsecuring it at any desired position,

The device comprises an accurately-bored outer cylinder fixed verticallyin the base of the chair and a cylindrical riser adapted to move withinthe outer cylinder and provided interiorly with the operative mechanism,which will now be described.

Referring to the accompanying drawings, 1 indicates the outer cylinder;2, the riser which moves therein, and 3a rock-shaft journaled in theriser, which at a convenient point outside of the chair is bent upwardlyat a right angle and forms an operating-handle 3. A fixed stem or stock4 has an aperture near its upper end and loosely engages the rock-shaft.The lower end, being reduced and laterally offset to approximate acentral position, is secured in an aperture 5 in the bottom of theriser. A dragging pawl 6 is pivoted between lugs 7 on the stock, itsfoot bein g laterally broadened and normally pressed outward by a spring8, and, projecting through an opening 9 in the shell of the riser,engages the annular recesses 10 in the wall of the outer cylinder. Apawl-arm 11 has its upper end pivotally connected to the rockerarm 12,rigidly secured to the rock-shaft, while the lower portion is broadenedand bifurcated, forming two toes 18*, which project through the opening13 in the riser and are also adapted to engage the aforementionedannular recesses. A locking-arm 14 has its upper end pivoted in the end15 of the rockerarm 12, its lower end being adapted to slide against thevertically-faced projection 16, integral with the stock. The outersurface of the lower part of arm 14 is wedge-formed and at a certainstage of, depression engages and thrusts outwardly the locking-shoe 17,which, being thusforced against the inner wall of the outer. cylinder,prevents a rotary movement of the chair; The toe 18 of the shoe isbifurcated and slides on each side of the base of the stock 4.ThelpawLarm is normally pressedoutwardly by a spring 19,

Formed with; the stem 4 is a projection 6, which strikes the draggingpawl 'when the handle 3" is'turned to the position marked M, throwing itout of engagement with the recess in the cylinder and allowing the riserto descend.

It will be observed that the bifurcation in the pawl-arm is formed withan inclination 20 to correspond with a like inclination 21 onthe-locking-arm.

Referring to Figs 2, 3, and4, the numeral 22 designates an arm pivotedto a lug 23, secured to the upper part of the riser, the end of whicharm is bentupwardly and connected with a coiled spring 24, alsoconnected with the riser, the tendency of which is to press said armdownwardly, so that the walls of the aperture 25, through which theapron-bar 26 passes, will bite or bind upon said bar and hold itsecurely in place, thus securing the apron and chair-back in a rigidposition. Secured to the rock-shaft is a cam 27, which engages with aprojection 28 on the arm 22, so that by turning said shaft the arm 22 isoperated to release the apron-bar, thereby allowing a free adjustment ofthe chair-back and apron.

In order to clearly show the various features of the operation and therelative movements involved, particular reference will be ,made inproper order to the dotted. lines M, N, O,

P, and Q, Fig. 1. Assuming that the proper quantity of oil has beeninitially placed in the cylinders, the operation is as follows: First,if it be desired to elevate the chair the lever 3' is turned from 0 toN, causing one end of the rocker-arm 12 to press down arm 11, the toe atthe lower end of which, engaging with one of the recesses in thecylinder, will lift the riser one step and allow the dragging pawl 9 toengage and hold the position thus gained. The lever is then reversed andmoved forward to O, which draws the pawlarm up to another step, and theback movement to N is repeated with the same results as before. As theriser ascends, the contained oil escapes through the orifice 3O (havingan under flap-valve into the bottom of the outer cylinder.

When the chair is raised to the desired height, the apron-bar may bereleased and the chair tilted backwardly by moving the lever from O toP, thus bringing the cam 27 to bear. The bottom of the riser is formedwith an orificeBO, closed by a flap-valve 30, which allows the oil toescape from the latter as it ascends, and is also formed with a smallorifice 29 to allow the oil to escape into the riser as it descends. Ifit be desired to prevent a rotary movement of the chair, the lever ismoved from P to Q, which forces the shoe outwardly by the action of thewedge before mentioned. In order to lower the chair, the lever is thrownback to M. It will be understood that N being approximately the backlimit of the movement for hoisting the chair, the movement from N backto M causes the bifurcated pawl-arm to descend into contact with theinclined surface 21 of the lockingarm, causing the said pawl-arm to becrowded inwardly against the pressure of the spring and to retire freefrom the annular recesses in the outer cylinder, simultaneously bringingthe projection on the rear side of the pawlarm into contact with the armof the dragging pawl and disengaging the toe of the latter. The risernow rests solely on the body of oil beneath it, and the flap-valvenaturally closing upwardly the oil is forced by the superimposedpressure to pass upwardly through the small orifice 29, and the riserdescends at a moderate rate of speed without regard to the weight of theload.

What I claim as new is- 1. In a barbers chair, the herein-describedouter cylinder attached to the base of the chair and provided with aseries of annular reoesses; a hollow rotatable cylinder or riser adaptedto move within the outer cylinder and having the chair-seat attached toits top; a transverse rock-shaft journaled near the upper end of theriser and the oscillatory hand-lever; a rock-arm secured to the saidshaft having a depending pawl-arm and a locking-arm respectivelyattached to its eX- tremities, the locking-arm, a locking-shoe adaptedto be pressed by said locking-arm against the interior wall of the outercylinder, the pawl-arm adapted to hoist the chair by successive steps;the dragging pawl the central stock to which said pawl is pivoted havingits lower end secured to the bottom of the riser and its upper end tothe rock-shaft; the said lifting pawl-arm having its lower engagingportion bifurcated and formed with an inclined surface adapted to engagea corresponding inclined face of the locking-arm at a certain positionof the operatinglever, thereby causing the lifting-pawl to retire fromthe annular recesses, and releasing the dragging pawl, allowing thesuperimposed weight to be upheld by the oil in the outer cylinder, saidoil being allowed to pass upwardly through an aperture as the chairdescends, substantially as herein specified.

2. In a barbers chair, the combination with the cylinder and the riser,and means for elevating and lowering the latter, of the curved armpivoted to the upper portion of the riser, the spring connected withsaid arm and riser, the projection on said arm, the rock-shaft, the camsecured thereto, and the apron-bar passing through an aperture in saidcurved arm, substantially as described.

In testimony that I claim the foregoing I have hereunto set my hand,this 31st day of March, 1897, in the presence of witnesses.

EUGENE BERNINGHAUS. l/Vitnessesz GEO. W. HARDAORE, WM. 13. VAN SANDT.

